Mounting of antifriction journal bearings in railway-truck side frames



Jan. 20, 1931. B. w. TAYLOR 1,789,933

MOUNTTNG OF ANTIFRICTION JOURNAL BEARINGS IN RAILWAY TRUCK SIDE FRAMES Filed June 21 1928 Svwemtoz Benjamin Taylw 3391;; 1563 61mm Q Patented 20, 1931 UNITED STATES- PATENT OFFICE BENJAMIN W. TAYLOR, OF BAYSIDE, NEW YORK, ASSIGNOR TO THE SKAYEE BALL BEARING COMPANY, OF HARTFORD, CONNECTICUT, A CORPORATION OF CONNEC'L ICUT i MOUNTING 0F TIFRIGTION JOURNAL BEARINGS IN RAILWAY-TRUCK SIDE FRAMES Application filed June 21, 1928. Serial No. 287,152.

The object of this invention is to form seats for mounting roller and other antifriction bearings directly in the ends of the side frames of railway trucks. In doing this, openings are formed atthe ends of the frame member which present walls completely surrounding the outer member of the anti-friction bearing. v

One practicable example of the invention is illustrated in the accompanyingflrawings, in which Figure 1 represents a railway truck side frame having at one end a cap or "closure for the end of the axle and the bearing, the other'end showing th1s cap removed and the bearing in position.

Fig. 2 is an enlarged top view of the righthand end of the construction shown in Figure 1, and

Fig. 3 is a central section taken at. about the plane of the lines 33 in Figs. 1 and 2, this view being shown approximately of the same scale as Fig. 2.

The frame 4: illustrated herein is in the main a standard form of railway truck side frame which I *have modified to produce a mounting for an anti-friction bearing, a roller bearing being shown in the present illustration. Heretofore, frames substantially of this type have been formed at their ends with recesses for receiving journal boxes. Accordin to my invention, I modify the ends and here out orfotherwise form an opening 5 extending-from side to side of each end. The walls of this opening areco'ntinuous for surrounding the outer member or ring 6 of theanti-friction bearing. 4 the illustration theinner ring 7 ofthe roller bearing is mounted upon the journal end 8 of thejcar axle} through the medium of a taper sleeve10. v

The end of the journal is shown screw threaded at 11 for receiving a suitable nut 12 which is held in position by the locking device 13, which in turn is held in position by a pair of-c'ap" screws 14. Two sets of rows of rollers 15.are shown mounted between the outer and innerraces 6 and 7, these parts being constructed for carrying both radial and axial loads.

The bearipg, according to the construction illustrated, may be removed from the axle by first removing "the cap screws 14 and the locking device 13, then unscrewing the re moving nut'12, after which a puller may be applied in back of the head 16 of the taper sleeve 10 for pulling this oil the journal 180 .for resting upon and closely embracing the upper portion of the outer ring or member 6, the lower portion being cut away as in 18 for freeing the bearing seat from the lower portion of the ring 6.

A cap 19 is shown forming a closure'for 'the outer end of the opening 5 and for the parts mounted therein, and a cap, 20 is shown provided for closing the other side or rear of the opening. These caps are preferably held in their closed position by a series of bolts 21. A positioning device, asifor instance a pin 22 may be applied for locating one of the covers in its upper radial position. 7

The inner or rear cover 20 is showns cooperating with labyrinth forming memb'ers, but as these do notspecifically form any part of the present improvement, their details will not be described.

The covers 19' and 20 are shown provided 6, as this moves-back and forthwith a car movement. C

For convenience of illustration, a part only of the truck has been'iillustrated,and the wheels have been omitted. However, it-

will be assumed that the wheel occupies a position on the axle "9 to the right of the part shown in Fig. 3.

The bearing mounted on the axle may be assembled with. the side frame by presentation from the rear side, the right-hand side in Fig. 3, or the bearing may be entered into the housing and its seat from-the left-hand side. In practice, it may be found desirable to mount the bearing upon the journal, and

also mount the rear closure member ,20 in position and present this assembled struc. ture' to the opening 5. from the rear side. 01, 1n some instances it may be found desirable to mount the bearing in the'opening 5 from in place holding the rear cover 20 when the front cover 19 may be removed, and the bearing removed from the axle and its seat in the manner previously described, whereupon inspection and repair or replacement of a new bearing -rnay be effected.

This ability to remove the bearing with out removing the axle from its position in the truck is a great advantage, since this repair may be done anywhere on the road.

Although but one form of the invention has been illustrated and particularly described, yetit is to be understood that various changes may be made as occasion de mands within the scope of the claims'with out departing from the spirit'of my invention.

Having described my invention, I claim and desire to secure by Letters Patent:

1. As anarticle of manufacture, a railwaytruck side frame, having at each of its ends an opening extending completely through it from side to side, the wall of each opening being continuous and forming a seat for surrounding the outer member of an anti-friction bearing, and constructed and ada ted to receive such anti-friction bearing om either side.

"2. As an article of manufacture, a railwa truck side frame, having at each of its en s an opening extending completely through it from side to side, thewall of each opening bein continuous and forming a seat for surroun ing the outer member of an anti-friction bearing, and constructed and adapted to receive such anti-friction bearing from either side, and removable closures for both sides of the openings.

3. As an article of manufacture, arail'way truck side frame, having at eah of its ends an opening extending completely through it from side to side, the wall of each 0 ening being continuous and forming a seat or su'r rounding the outer member of an anti-friction bearing, and constructed and adapted to permit the removal of such anti-friction bearing.

from either side;

4;. As an article of manufacture, a railway truck side frame, having at. each of its ends an opening extending completely through it from Side to side, the Wall of eachopening being continuous and forming a seat for surrounding the outer member of an anti-friction bearing, removable closures for both sides of the openings, and constructed and adapted to permit the removal of such antifriction bearing from either side.

5. The combination with a rallway car axle, having an anti-friction bearing mounted upon it, such bearing comprising. a'ninner ring, an outer ring and rolling elements therebetween, a railway truck side frame having an opening in its end extending completely through it from side to side, the wall of such opening being continuous and forming aseat for surrounding the outer ring, removable closures for both sides of the open ing, the parts being so constructed and adapted that upon the removal of the outer cover the anti-friction bearing may be removed from the seat and axle while these parts are in position in the truck and under the car,

or upon removal of the inner closure the axle and hearing may be rem'o'ved from the seat.

of June, 1928.

BENJAMIN W. TAYLOR. 

